package br.com.ds3.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import org.hibernate.Session;

import br.com.ds3.util.HibernateUtil;

public class HibernateSessionFilter implements Filter {

	@Override
	public void destroy() {}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		Session currentSession = HibernateUtil.getSessionFactory().getCurrentSession();
	
		try {
			currentSession.beginTransaction();			
			chain.doFilter(request, response);
			currentSession.getTransaction().commit();
		} catch (Exception e) {
			currentSession.getTransaction().rollback();			
			e.printStackTrace();
		}
	}

	@Override
	public void init(FilterConfig config) throws ServletException {}
}
